Skip the auto shop - Our mechanics make house calls

Q: Door ajar light is on and the cab lights won't turn off while driving

asked by on

Doors fully closed and still getting Door Ajar Warning and in cab lights won't turn off while driving, and can activate alarm. Where is the ajar switch on the C5

My car has 77500 miles.
My car has a manual transmission.

Hi there. From the description you have provided, this is probably the result of a failed door ajar light switch. The door ajar switch is part of the door latch assembly. It may have to be replaced as an assembly. It could also be from a short in the door ajar light circuit that is also causing problems with other vehicle electronics. If you would like to have an expert pinpoint the problem, a certified professional from YourMechanic can come to your car’s location to inspect the Door Ajar Light and follow through with any repairs that are needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • Door ajar light is on and the cab lights won't turn off while driving

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: When I try to start the car it clicks with a little white smoke coming out

This is a common sign of a failing starter solenoid. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity to the starter. When this fails, it may cause a clicking sound and will...

Q: How do I unlock the car with the Intelligent Access (IA) key?

The Intelligent Access (IA) key allows you to unlock your vehicle without using the key. As long as the IA key is on your person, you will be able to unlock the vehicle simply by pulling on one of the...

Q: Front Passenger Lock sometimes does not lock with a remote control or by locking button located on either doors.

The solenoid is on the door latch and is most likely the cause of the problem for your 2005 Toyota Tacoma. If you want to have this inspected and repaired, a certified technician from YourMechanic can come to your home...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.